A 23-year-old man is in jail after police say he shot a bystander who tried to break up a fight between him and his girlfriend.

What we know: Dallas police arrested Isaiah Brazil on Tuesday and charged him with murder in the death of 28-year-old Samarius Johnson.

Officers responded to a shooting just after 9 p.m. on Friday, Oct. 30, at The Anderson Apartments in the 3700 block of South Tyler Street.